jdk8-mips64-public/nashorn: samples/unzip.js@2f1b9f4daec1 (annotated)

samples/unzip.js@2f1b9f4daec1 (annotated)

samples/unzip.js

Fri, 05 Jun 2015 12:38:53 +0200

author: mhaupt
date: Fri, 05 Jun 2015 12:38:53 +0200
changeset 1398: 2f1b9f4daec1
parent 1372: 644d9b9c97ed
permissions: -rw-r--r--

8080087: Nashorn $ENV.PWD is originally undefined
Summary: On Windows, the PWD environment variable does not exist and cannot be imported in scripting mode, so it is set explicitly.
Reviewed-by: lagergren, sundar

 /*
  * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  *   - Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  *
  *   - Redistributions in binary form must reproduce the above copyright
  *     notice, this list of conditions and the following disclaimer in the
  *     documentation and/or other materials provided with the distribution.
  *
  *   - Neither the name of Oracle nor the names of its
  *     contributors may be used to endorse or promote products derived
  *     from this software without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 /*
  * Simple unzip tool using #nashorn and #java
  * zip fs file system interface.
  */
 if (arguments.length == 0) {
     print("Usage: jjs zipfs.js -- <.zip/.jar file> [out dir]");
     exit(1);
 }
 var File = Java.type("java.io.File");
 // output directory where zip is extracted
 var outDir = arguments[1];
 if (!outDir) {
     outDir = ".";
 } else {
     if (! new File(outDir).isDirectory()) {
         print(outDir + " directory does not exist!");
         exit(1);
     }
 }
 var Files = Java.type("java.nio.file.Files");
 var FileSystems = Java.type("java.nio.file.FileSystems");
 var Paths = Java.type("java.nio.file.Paths");
 var zipfile = Paths.get(arguments[0])
 var fs = FileSystems.newFileSystem(zipfile, null);
 var root = fs.rootDirectories[0];
 // walk root and handle each Path
 Files.walk(root).forEach(
     function(p) {
         var outPath = outDir +
             p.toString().replace('/', File.separatorChar);
         print(outPath);
         if (Files.isDirectory(p)) {
             // create directories as needed
             new File(outPath).mkdirs();
         } else {
             // copy a 'file' resource
             Files.copy(p, new File(outPath).toPath());
         }
     }
 );
 // done
 fs.close();